diff --git a/SpecialOAuth2Client.php b/SpecialOAuth2Client.php
index 65734f1..d11e99e 100644
--- a/SpecialOAuth2Client.php
+++ b/SpecialOAuth2Client.php
@@ -188,8 +188,17 @@ protected function _userHandling( $response ) {
 		} else {
 			$real_name = $username;
 		}
+
+		if (isset($wgOAuth2Client['configuration']['preferred_language'])) {
+			$preferred_language = JsonHelper::extractValue($response, $wgOAuth2Client['configuration']['preferred_language']);
+		} else {
+			$preferred_language = 'en';
+		}
+		
 		$user->setRealName($real_name);
 		$user->setEmail($email);
+		$user->setOption('language', $preferred_language);
+		
 		$user->load();
 		if ( !( $user instanceof User && $user->getId() ) ) {
 			$user->addToDatabase();